Re: How to select values in a JSON type of column?

From: "David G(dot) Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com>
To: Snjezana Frketic <frketic(dot)snjezana(at)gmail(dot)com>
Cc: "pgsql-general(at)lists(dot)postgresql(dot)org" <pgsql-general(at)lists(dot)postgresql(dot)org>
Subject: Re: How to select values in a JSON type of column?
Date: 2020-11-18 14:40:43
Message-ID: CAKFQuwYVfGGHem7f06Hn=Ex5ZMNCkoPGf4c7EoUiittm8M1hgg@mail.gmail.com
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On Wednesday, November 18, 2020, Snjezana Frketic <
frketic(dot)snjezana(at)gmail(dot)com> wrote:

>
>
> SELECT targeting#>'{targets,0,audienceSegments,0,includes,0,
> segments,allOf,0,ids}'FROM campaigns;
>
> and that works, but, I don’t want to have a fixed path because positions
> could change like 0 could become 1, includes and excludes could change
> positions, allOf could be anyOf etc.
> Any idea of how to always select ids in includes no matter the changes?
>

Maybe it can be done using json path:

https://www.postgresql.org/docs/13/functions-json.html#FUNCTIONS-SQLJSON-PATH

David J.

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